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Table 1 Sample characteristics of Stage 1 and 2

From: Modification and verification of the Infant–Toddler Meaningful Auditory Integration Scale: a psychometric analysis combining item response theory with classical test theory

  Stage 1 Stages 2 p
Number of participants 1730 450  
Number of ITMAIS/ITMAIS-m assessment 3092 450  
Gender (Male, %) 992(57.3) 268(59.6) 0.422
Assessment age (months, median with IQR) Age ranges (n, %) 29.0(17.6, 41.9) 5.7(3.6, 9.3) < 0.001
 0–12 months 471(15.2) 367(81.6)  
 12–24 months 731(23.6) 83(18.4)  
 24–36 months 855(27.7)  
 > 36 months 1035(33.5)  
Hearing grades of the better ear (n, %)    < 0.001
 Normal 126(7.3) 77(17.1)  
 Mild 7(0.4) 49(10.9)  
 Moderate 201(11.5) 160(35.6)  
 Severe 238(13.8) 54(12.0)  
 Profound 1145(66.2) 110(24.4)  
 Unknown 13(0.8)  
Hearing types of the better ear (n, %)    < 0.001
 Sensorineural 1320(76.3) 363(80.7)  
 Conductive 226(13.1) 6(1.3)  
 Mixed 145(8.3) 1(0.2)  
 Unknown 39(2.3)  
Auditory interventions (n, %)    
 Without any interventions 644(37.2) 450(100)  
 Hearing aid 744(43.0)  
 Cochlear implantation 342(19.8)  
  1. IQR interquartile range